About Mailwatch:
While GKrellM has a mail monitor of it's own, you have only one counter..
with this plugin you can setup extra counters for your mailboxes. I use
GKrellM's own monitor for a total new mail count (and the cool animation)..
The plugin monitors my most used mailboxes seperately. You can see it in the
screenshot next to this, it's under GKrellM own mailbox monitor.